refactor kernel code (part 1), mark it as broken now

SVN-Revision: 7916

7 files changed, 559 insertions, 0 deletions

diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/Makefile b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/Makefile
new file mode 100644
index 0000000..d844b60
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for the ADMtek ADM5120 SoC specific parts of the kernel
+#
+
+lib-y	+= bootbase.o
+lib-y	+= cfe.o
+lib-y	+= generic.o
+lib-y	+= myloader.o
+lib-y	+= routerboot.o
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/bootbase.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/bootbase.c
new file mode 100644
index 0000000..c54c4ce
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/bootbase.c
@@ -0,0 +1,124 @@
+/*
+ *  $Id$
+ *
+ *  ZyXEL's Bootbase specific prom routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/byteorder.h>
+
+#include <adm5120_defs.h>
+#include <prom/zynos.h>
+#include "prom_read.h"
+
+#define ZYNOS_INFO_ADDR		KSEG1ADDR(ADM5120_SRAM0_BASE+0x3F90)
+#define ZYNOS_HDBG_ADDR		KSEG1ADDR(ADM5120_SRAM0_BASE+0x4000)
+#define BOOTEXT_ADDR_MIN	KSEG1ADDR(ADM5120_SRAM0_BASE)
+#define BOOTEXT_ADDR_MAX	(BOOTEXT_ADDR_MIN + (2*1024*1024))
+
+static int bootbase_found = 0;
+static struct zynos_board_info *board_info;
+
+struct bootbase_info bootbase_info;
+
+static inline int bootbase_dbgarea_present(u8 *data)
+{
+	u32 t;
+
+	t = prom_read_be32(data+5);
+	if (t != ZYNOS_MAGIC_DBGAREA1)
+		return 0;
+
+	t = prom_read_be32(data+9);
+	if (t != ZYNOS_MAGIC_DBGAREA2)
+		return 0;
+
+	return 1;
+}
+
+static inline u32 bootbase_get_bootext_addr(void)
+{
+	return prom_read_be32(&board_info->bootext_addr);
+}
+
+static inline u16 bootbase_get_vendor_id(void)
+{
+#define CHECK_VENDOR(n) (strnicmp(board_info->vendor,(n),strlen(n)) == 0)
+	unsigned char vendor[ZYNOS_NAME_LEN];
+	int i;
+
+	for (i=0; i<ZYNOS_NAME_LEN; i++)
+		vendor[i]=board_info->vendor[i];
+
+	if CHECK_VENDOR(ZYNOS_VENDOR_ZYXEL)
+		return ZYNOS_VENDOR_ID_ZYXEL;
+
+	if CHECK_VENDOR(ZYNOS_VENDOR_DLINK)
+		return ZYNOS_VENDOR_ID_DLINK;
+
+	if CHECK_VENDOR(ZYNOS_VENDOR_LUCENT)
+		return ZYNOS_VENDOR_ID_LUCENT;
+
+	if CHECK_VENDOR(ZYNOS_VENDOR_NETGEAR)
+		return ZYNOS_VENDOR_ID_NETGEAR;
+
+	return ZYNOS_VENDOR_ID_OTHER;
+}
+
+static inline u16 bootbase_get_board_id(void)
+{
+	return prom_read_be16(&board_info->board_id);
+}
+
+int __init bootbase_present(void)
+{
+	u32	t;
+
+	if (bootbase_found)
+		goto out;
+
+	/* check presence of the dbgarea */
+	if (bootbase_dbgarea_present((u8 *)ZYNOS_HDBG_ADDR) == 0)
+		goto out;
+
+	board_info = (struct zynos_board_info *)(ZYNOS_INFO_ADDR);
+
+	/* check for a valid BootExt address */
+	t = bootbase_get_bootext_addr();
+	if ((t < BOOTEXT_ADDR_MIN) || (t > BOOTEXT_ADDR_MAX))
+		goto out;
+
+	bootbase_info.vendor_id = bootbase_get_vendor_id();
+	bootbase_info.board_id = bootbase_get_board_id();
+
+	bootbase_found = 1;
+
+out:
+	return bootbase_found;
+}
+
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/cfe.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/cfe.c
new file mode 100644
index 0000000..cce6944
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/cfe.c
@@ -0,0 +1,86 @@
+/*
+ *  $Id$
+ *
+ *  Broadcom's CFE specific prom routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include <prom/cfe.h>
+#include "prom_read.h"
+
+/*
+ * CFE based boards
+ */
+#define CFE_EPTSEAL	0x43464531 /* CFE1 is the magic number to recognize CFE
+from other bootloaders */
+
+static int cfe_found = 0;
+
+static u32 cfe_handle;
+static u32 cfe_entry;
+static u32 cfe_seal;
+
+int __init cfe_present(void)
+{
+	/*
+	 * This method only works, when we are booted directly from the CFE.
+	 */
+	u32 a1 = (u32) fw_arg1;
+
+	if (cfe_found)
+		return 1;
+
+	cfe_handle = (u32) fw_arg0;
+	cfe_entry = (u32) fw_arg2;
+	cfe_seal = (u32) fw_arg3;
+
+	/* Check for CFE by finding the CFE magic number */
+	if (cfe_seal != CFE_EPTSEAL) {
+		/* We are not booted from CFE */
+		return 0;
+	}
+
+	/* cfe_a1_val must be 0, because only one CPU present in the ADM5120 */
+	if (a1 != 0) {
+		return 0;
+	}
+
+	/* The cfe_handle, and the cfe_entry must be kernel mode addresses */
+	if ((cfe_handle < KSEG0) || (cfe_entry < KSEG0)) {
+		return 0;
+	}
+
+	cfe_found = 1;
+	return 1;
+}
+
+char *cfe_getenv(char *envname)
+{
+	if (cfe_found == 0)
+		return NULL;
+
+	return NULL;
+}
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/generic.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/generic.c
new file mode 100644
index 0000000..412e9a7
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/generic.c
@@ -0,0 +1,60 @@
+/*
+ *  $Id$
+ *
+ *  Generic PROM routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+
+#include <prom/generic.h>
+
+static int *_prom_argc;
+static char **_prom_argv;
+static char **_prom_envp;
+
+char *generic_prom_getenv(char *envname)
+{
+	char **env;
+	char *ret;
+
+	ret = NULL;
+	for (env = _prom_envp; *env != NULL; env++) {
+		if (strcmp(envname, *env++) == 0) {
+			ret = *env;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+int generic_prom_present(void)
+{
+	_prom_argc = (int *)fw_arg0;
+	_prom_argv = (char **)fw_arg1;
+	_prom_envp = (char **)fw_arg2;
+
+	return 1;
+}
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c
new file mode 100644
index 0000000..972de4e
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c
@@ -0,0 +1,75 @@
+/*
+ *  $Id$
+ *
+ *  Compex's MyLoader specific prom routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/byteorder.h>
+
+#include <adm5120_defs.h>
+#include <prom/myloader.h>
+#include "prom_read.h"
+
+#define SYS_PARAMS_ADDR		KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F000)
+#define BOARD_PARAMS_ADDR	KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F800)
+#define PART_TABLE_ADDR		KSEG1ADDR(ADM5120_SRAM0_BASE+0x10000)
+
+static int myloader_found = 0;
+
+struct myloader_info myloader_info;
+
+int __init myloader_present(void)
+{
+	struct mylo_system_params *sysp;
+	struct mylo_board_params *boardp;
+	struct mylo_partition_table *parts;
+
+	if (myloader_found)
+		goto out;
+
+	sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
+	boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
+	parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
+
+	/* Check for some magic numbers */
+	if ((le32_to_cpu(sysp->magic) != MYLO_MAGIC_SYS_PARAMS) ||
+	   (le32_to_cpu(boardp->magic) != MYLO_MAGIC_BOARD_PARAMS) ||
+	   (le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS))
+		goto out;
+
+	myloader_info.vid = le32_to_cpu(sysp->vid);
+	myloader_info.did = le32_to_cpu(sysp->did);
+	myloader_info.svid = le32_to_cpu(sysp->svid);
+	myloader_info.sdid = le32_to_cpu(sysp->sdid);
+
+	myloader_found = 1;
+
+out:
+	return myloader_found;
+}
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/prom_read.h b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/prom_read.h
new file mode 100644
index 0000000..8cef4a4
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/prom_read.h
@@ -0,0 +1,63 @@
+/*
+ *  $Id$
+ *
+ *  Generic prom definitions
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#ifndef _ADM5120_PROM_H_
+#define _ADM5120_PROM_H_
+
+/*
+ * Helper routines
+ */
+static inline u16 prom_read_le16(void *buf)
+{
+	u8 *p = buf;
+
+	return ((u16)p[0] + ((u16)p[1] << 8));
+}
+
+static inline u32 prom_read_le32(void *buf)
+{
+	u8 *p = buf;
+
+	return ((u32)p[0] + ((u32)p[1] << 8) + ((u32)p[2] << 16) +
+		((u32)p[3] << 24));
+}
+
+static inline u16 prom_read_be16(void *buf)
+{
+	u8 *p = buf;
+
+	return (((u16)p[0] << 8) + (u16)p[1]);
+}
+
+static inline u32 prom_read_be32(void *buf)
+{
+	u8 *p = buf;
+
+	return (((u32)p[0] << 24) + ((u32)p[1] << 16) + ((u32)p[2] << 8) +
+		((u32)p[3]));
+}
+
+#endif /* _ADM5120_PROM_H_ */
+
+
diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c
new file mode 100644
index 0000000..ad28353
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c
@@ -0,0 +1,142 @@
+/*
+ *  $Id$
+ *
+ *  Mikrotik's RouterBOOT specific prom routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include <adm5120_defs.h>
+#include <prom/routerboot.h>
+#include "prom_read.h"
+
+static struct rb_hard_settings rb_hs;
+static int rb_found = 0;
+
+static int __init routerboot_load_hs(u8 *buf, u16 buflen)
+{
+	u16 id,len;
+	u8 *mac;
+	int i,j;
+
+	memset(&rb_hs, 0, sizeof(rb_hs));
+
+	if (buflen < 4)
+		return -1;
+
+	if (prom_read_le32(buf) != RB_MAGIC_HARD)
+		return -1;
+
+	/* skip magic value */
+	buf += 4;
+	buflen -= 4;
+
+	while (buflen > 2) {
+		id = prom_read_le16(buf);
+		buf += 2;
+		buflen -= 2;
+		if (id == RB_ID_TERMINATOR || buflen < 2)
+			break;
+
+		len = prom_read_le16(buf);
+		buf += 2;
+		buflen -= 2;
+
+		if (buflen < len)
+			break;
+
+		switch (id) {
+		case RB_ID_BIOS_VERSION:
+			rb_hs.bios_ver = (char *)buf;
+			break;
+		case RB_ID_BOARD_NAME:
+			rb_hs.name = (char *)buf;
+			break;
+		case RB_ID_MEMORY_SIZE:
+			rb_hs.mem_size = prom_read_le32(buf);
+			break;
+		case RB_ID_MAC_ADDRESS_COUNT:
+			rb_hs.mac_count = prom_read_le32(buf);
+			break;
+		case RB_ID_MAC_ADDRESS_PACK:
+			rb_hs.mac_count = len/RB_MAC_SIZE;
+			if (rb_hs.mac_count > RB_MAX_MAC_COUNT)
+				rb_hs.mac_count = RB_MAX_MAC_COUNT;
+			mac = buf;
+			for (i=0; i < rb_hs.mac_count; i++) {
+				for (j=0; j < RB_MAC_SIZE; j++)
+					rb_hs.macs[i][j] = mac[j];
+				mac += RB_MAC_SIZE;
+			}
+			break;
+		}
+
+		buf += len;
+		buflen -= len;
+
+	}
+
+	return 0;
+}
+
+#define RB_BS_OFFS	0x14
+#define RB_OFFS_MAX	(128*1024)
+
+int __init routerboot_present(void)
+{
+	struct rb_bios_settings	*bs;
+	u8 *base;
+	u32 off,len;
+
+	if (rb_found)
+		goto out;
+
+	base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE);
+	bs = (struct rb_bios_settings *)(base + RB_BS_OFFS);
+
+	off = prom_read_le32(&bs->hs_offs);
+	len = prom_read_le32(&bs->hs_size);
+	if (off > RB_OFFS_MAX)
+		goto out;
+
+	if (routerboot_load_hs(base+off, len) != 0)
+		goto out;
+
+	rb_found = 1;
+
+out:
+	return rb_found;
+}
+
+char *routerboot_get_boardname(void)
+{
+	if (rb_found == 0)
+		return NULL;
+
+	return rb_hs.name;
+}